507 static bool spte_is_bit_cleared(u64 old_spte, u64 new_spte, u64 bit_mask)  in spte_is_bit_cleared()  argument
509 	return (old_spte & bit_mask) && !(new_spte & bit_mask);  in spte_is_bit_cleared()
512 static bool spte_is_bit_changed(u64 old_spte, u64 new_spte, u64 bit_mask)  in spte_is_bit_changed()  argument
514 	return (old_spte & bit_mask) != (new_spte & bit_mask);  in spte_is_bit_changed()
540 	u64 old_spte = *sptep;  in mmu_spte_update()  local
545 	if (!is_shadow_present_pte(old_spte)) {  in mmu_spte_update()
550 	if (!spte_has_volatile_bits(old_spte))  in mmu_spte_update()
553 		old_spte = __update_clear_spte_slow(sptep, new_spte);  in mmu_spte_update()
560 	if (spte_is_locklessly_modifiable(old_spte) &&  in mmu_spte_update()
571 	if (spte_is_bit_changed(old_spte, new_spte,  in mmu_spte_update()
575 	if (spte_is_bit_cleared(old_spte, new_spte, shadow_accessed_mask))  in mmu_spte_update()
576 		kvm_set_pfn_accessed(spte_to_pfn(old_spte));  in mmu_spte_update()
577 	if (spte_is_bit_cleared(old_spte, new_spte, shadow_dirty_mask))  in mmu_spte_update()
578 		kvm_set_pfn_dirty(spte_to_pfn(old_spte));  in mmu_spte_update()
591 	u64 old_spte = *sptep;  in mmu_spte_clear_track_bits()  local
593 	if (!spte_has_volatile_bits(old_spte))  in mmu_spte_clear_track_bits()
596 		old_spte = __update_clear_spte_slow(sptep, 0ull);  in mmu_spte_clear_track_bits()
598 	if (!is_rmap_spte(old_spte))  in mmu_spte_clear_track_bits()
601 	pfn = spte_to_pfn(old_spte);  in mmu_spte_clear_track_bits()
610 	if (!shadow_accessed_mask || old_spte & shadow_accessed_mask)  in mmu_spte_clear_track_bits()
612 	if (!shadow_dirty_mask || (old_spte & shadow_dirty_mask))  in mmu_spte_clear_track_bits()